Thread protector for M18x1 rifle

(3 customer reviews)


To preserve the thread of your European heavy-barreled rifle (Bergara, T3X Sporter, Sako TRG, Browning or CZ Varmint…), we offer this thread protector for M18x1 rifle. A high-quality blued steel part, that worth your long range weapon.

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A thread protector : small part, big stakes

On long-range rifles, it is common to encounter a threaded heavy barrel. Then you can mount a silencer or a muzzle brake, which is useful for gaining shooting comfort. But when there is no muzzle device on it, the thread is vulnerable. A bad fall or accidental shock can quickly distort it, and it will be unusable in the future. That’s why we offer this thread protector for M18x1 rifle. A small part that costs little, but can save you large expenses.

To best match your long gun barrel, we offer this part in different external diameters, knurled or not. Use the drop-down menus to the right of the image to choose the settings that suit your need.

Compatibility of our thread protector for M18x1 rifle

M18x1 thread is usually found on large caliber European rifles. It is also sometimes called M18x100 metric and keeps maximum thickness at the muzzle. Thus it is used by the greatest gun manufacturers. We think of Sako (for its TRG 22), Tikka (for its T3X Sporter and T3X Tactical), Browning (for some X-Bolt Varmint), CZ (for its CZ 557 Varmint) and many others.

In general, our thread protector will be suitable for any M18x1 firearm with 16 mm (0.63″) long or less thread to cover. If yours is in another standard, check out our other options in the thread protectors section.

Careful European manufacturing

Since the M18x1 is a European thread, the French manufacture of this extended thread protector is desirable. We make them on the latest generation of CNC machines. To do so, we use a XC38 Steel, also known as C35. It reacts superbly to hot bluing, and you can enjoy a high-end finish at the height of the barrel.

To facilitate successive screwing and unscrewing, we perform an external knurling of great precision. Each piece also undergoes careful quality control at every stage of its manufacturing. The result is there : a high quality, durable thread protector, that is also pleasant to the eye.

Shipping worldwide.

Additional information

Weight 15 g
Dimensions 16 × 21 mm


Barrel thread



Blued steel


0,630 (16 mm)

3 reviews for Thread protector for M18x1 rifle

  1. Joshua D. (verified owner)

    Highest quality and finish of any thread protector I have ever purchased. Just amazing.

  2. Matthew M. (verified owner)

    Beautiful machining. Put on a CZ Scorpion. Works great.

  3. Noel (verified owner)

    Perfect good workmanship

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